Post of the Day: Strange demolition

The following images are the result of an interesting story (at least to me). The structure left behind was one of four, attached townhouses. Three of the units, A, B, and D, were foreclosed. The bank wanted them demolished thinking the beachfront property was more valuable vacant. Hold on there, the owner of unit C wanted to keep his standing. The bank went ahead with the demolition of their three units, one on the west side and two on the east, and this is the result:

Yes, that's drywall on the exterior sides. Note that portions of unit C still encroach onto the bank's properties. The owner wants to weather proof the unit and move in. But how does he do that without trespassing on the bank's properties?